You can start by converting to the same fraction and making the second one improper, so 29/8 and 4/8. Subtract them to find the difference and you are left with 25/8 or 3 1/8 gallons.
The full road trip is 50 miles. Step-by-step explanation: Given, Distance traveled by Joe's family = 30 miles This represents 60% of the total distance to be traveled.
